ganja 2
Active Member
3 panels reds at 640 , CW , NW ,and WW 2700 K,Ganja ,those panels ,Picolada has,I remember that we had all the reds at ~640 nm ,CW and WW 2700 K ?
Right ?
and 1 panel reds at 630 ,NW and WW
3 panels reds at 640 , CW , NW ,and WW 2700 K,Ganja ,those panels ,Picolada has,I remember that we had all the reds at ~640 nm ,CW and WW 2700 K ?
Right ?
NW + WW ..Ganja 2 and SDS what do you think would be better plant-wise (from seed to harvest) in Astir panels - Cold Whites (let's say 6500K - 8000K) or Neutral Whites (4200K - 3800K) with WW (2700K) and 630nm?
Because I don't know do I have to order CW or NW would do the job without CW..
Thanks for any info!
Thanks for your help!NW + WW ..
As for the reds ..
Try to find " good " 620-640 or 640-660 nm (or both ...)...
Really not bad, imo, considering the SPD. There's so much Deep Red which produces a fair amount of heat at the phosphor level. If we want better efficiency I think it's down to Neutral White's and Red/Deep Red's.For our 5630 0.4W SMDs, our test reports show our input as 406 mW and output as 95 mW. This gives us about 23.4 % efficiency.
We did a test for the violet chip alone. Attached is the test report – we’re showing about 155 mW out for 421 mW in. That’s about 37% efficiency, vs the 23% with the phosphor conversion.
I asked them if they could place three .4W chips into a 1W housing.We ran some tests on using the new type of chip for the 1W but we found that the luminous efficacy is lower than we expected. Our R&D folks think that it’s related to the fact that a larger die means less surface area for the phosphor conversion. [...] We are still using the same phosphor types. The proportions will most likely have to be adjusted slightly. For new housing types this can be tricky but chromaticity positioning is relatively straightforward to predict and after a few adjustments we’re usually set on the correct phosphor blend proportions. [...] Currently, our second solution involves using two 0.4W chips and mounting them in a 1W housing. By design, this will draw 0.8 W instead of 1.0 W. We’ll see how the numbers look for this approach.
Also, starting today our factory is closed until next Tuesday for Chinese National Day holiday (Chinese independence day if you will). We’ll continue experiments next week. Sorry about the delay!
So that's where we're at right now. They are still on holiday, they are still having ?phosphor overload? issues with the 1W chip, and it looks like a ~1W solution will be possible one way or another.I’ll ask about placing three die in one housing next week when our R&D guys are back!